NCSS Moment Tensor Solution

Solution reviewed by Peggy

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73133256
Origin Time2019/01/15 20:20:20
Latitude40.3267
Longitude-124.4410
Depth (TT)7.5 km
Depth (MT; not authoritative)5 km

Magnitudes:
Md3.98 (not authoritative)
Ml4.02 (not authoritative)
Mw4.08 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T1.56245.51538.896
N0.1755.679134.707
P-1.73643.924230.204

Source Composition:
TypePercent
DC80
CLVD20
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo1.65e+22 Dyne-cm
Mxx1.810e+21 Dyne-cm
Mxy-1.547e+21 Dyne-cm
Mxz1.151e+22 Dyne-cm
Myy-1.420e+21 Dyne-cm
Myz1.169e+22 Dyne-cm
Mzz-3.897e+20 Dyne-cm
Variance Reduction62%
Version number1
Solution time2019/01/17 00:07:09 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP11358489
NP2371726

Waveform data (solid line) and synthetic data (dashed line) from the moment tensor inversion: